1 /* 2 * QEMU simulated pvpanic device. 3 * 4 * Copyright Fujitsu, Corp. 2013 5 * 6 * Authors: 7 * Wen Congyang <wency@cn.fujitsu.com> 8 * Hu Tao <hutao@cn.fujitsu.com> 9 * 10 * This work is licensed under the terms of the GNU GPL, version 2 or later. 11 * See the COPYING file in the top-level directory. 12 * 13 */ 14 15 #ifndef HW_MISC_PVPANIC_H 16 #define HW_MISC_PVPANIC_H 17 18 #include "qom/object.h" 19 20 #define TYPE_PVPANIC_ISA_DEVICE "pvpanic" 21 #define TYPE_PVPANIC_PCI_DEVICE "pvpanic-pci" 22 23 #define PVPANIC_IOPORT_PROP "ioport" 24 25 /* 26 * PVPanicState for any device type 27 */ 28 typedef struct PVPanicState PVPanicState; 29 struct PVPanicState { 30 MemoryRegion mr; 31 uint8_t events; 32 }; 33 34 void pvpanic_setup_io(PVPanicState *s, DeviceState *dev, unsigned size); 35 36 static inline uint16_t pvpanic_port(void) 37 { 38 Object *o = object_resolve_path_type("", TYPE_PVPANIC_ISA_DEVICE, NULL); 39 if (!o) { 40 return 0; 41 } 42 return object_property_get_uint(o, PVPANIC_IOPORT_PROP, NULL); 43 } 44 45 #endif 46